Python’s implementation of an associative array data structure is dictionaries. A dictionary is a collection of key-value pairs. Each key pair is represented by a key pair and its associated value.
A dictionary is defined by a list of key-value pairs enclosed in curly braces and separated by commas. Each key’s value is separated by a comma in column ‘:’.
A dictionary cannot be sorted solely for the purpose of obtaining a representation of the sorted dictionary. Dictionaries are orderless by definition, but other types, such as lists and tuples, are not. As a result, you require an ordered data type, which is a list—most likely a list of tuples.
Solution for Dict_values object does not support indexing
We can solve this type error by using lists.
Error: ‘dict_values’ object does not support indexing
The dict.values() function returns a view object, and view objects cannot be indexed. If we try to select elements from it using indexing, we will receive the following error.
TypeError: ‘dict_values’ object does not support indexing
Take a dictionary and fetch all the values of the dictionary and print the first index then we get this error.
Implementation:
# given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # extracting the values dictvalue = dictionary.values() # printing the dictionary values print(dictvalue) print('now extracting the first index of dictvalue') # printing the first index of dictvalue print(dictvalue[0])
Output:
dict_values([200, 100, 300]) now extracting the first index of dictvalue Traceback (most recent call last): File "./prog.py", line 9, in <module> TypeError: 'dict_values' object does not support indexing
Solution for this type error
To avoid this error, we can convert the view object dict values to a list and then index it. For example, we can convert the dict values object to a list object and then select an element from it at any index.
We can convert dictionary values to list easily by using list(given_dictionary_name. values())
In this case, we convert all of the values from the dictionary to a list and then chose the first element from the list, which is the first value from the dictionary’s first key-value pair.
Below is the implementation:
# given dictionary dictionary = {'this': 200, 'is': 100, 'BTechGeeks': 300} # extracting the values and converting to list dictvalue = list(dictionary.values()) # printing the dictionary values print(dictvalue) print('now extracting the first index of dictvalue') # printing the first index of dictvalue print(dictvalue[0])
Output:
[200, 100, 300] now extracting the first index of dictvalue 200
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